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The two Keck telescopes seen from above. The domes are open and the telescopes' mirrors can be seen inside.

Keck Telescopes

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Caption: The two Keck telescopes on Mauna Kea on the island of Hawai`i. These two telescopes are reflecting telescopes with primary mirrors 10m across.
Credit: NASA/JPL
Credit Link

Glosar de termeni: Infrared Astronomy , Observatory , Optical Astronomy , Reflecting Telescope
Categories: Telescopes, Instruments and Observatories

License: Public Domain Public Domain icons

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The four telescope domes of VLT. One dome is open and firing laser beams. In the sky, the moon has a ring of light around it.

ESO's Very Large Telescope (VLT) at Paranal Observatory with a lunar halo

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Caption: The Very Large Telescope on Cerro Paranal in Chile has four reflecting telescopes each with a primary mirror 8.2m across. In this image one dome is open and firing laser beams into the sky. These lasers create artificial stars in the sky that can be used to adjust the telescope optics to remove the blurring effect of the Earth's atmosphere. This process is known as adaptive optics. In the sky the Moon is surrounded by a bright halo. This is caused by light from the moon reflecting inside ice crystals in the Earth's atmosphere.
Credit: Juan Carlos Muñoz-Mateos/ESO
Credit Link

Glosar de termeni: Observatory , Adaptive Optics , Halo
Categories: Telescopes, Instruments and Observatories

License: Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) icons

Fișier ( image 4.27 MB)


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